Tungsten diselenide Q-switched erbium-doped fiber laser

Bohua Chen; Xiaoyan Zhang; Chaoshi Guo; Kan Wu; Jianping Chen; Jun Wang

doi:10.1117/1.OE.55.8.081306

27 January 2016 Tungsten diselenide Q-switched erbium-doped fiber laser

Bohua Chen, Xiaoyan Zhang, Chaoshi Guo, Kan Wu, Jianping Chen, Jun Wang

Author Affiliations +

Optical Engineering, Vol. 55, Issue 8, 081306 (January 2016). https://doi.org/10.1117/1.OE.55.8.081306

Abstract

We report a tungsten diselenide (WSe₂) polyvinyl alcohol (PVA)-based, saturable absorber and related experiment results of a Q-switched fiber laser. WSe₂-PVA film is synthesized by liquid phase exfoliation method, and its saturable absorption is measured via a nonlinear transmission experiment. The result shows that WSe₂-PVA saturable absorber has a modulation depth of 3.5%, which means it has potential for generating an ultrafast pulse laser. We apply this absorber into a ring-cavity erbium-doped fiber laser and obtain Q-switched pulses under appropriate pump power. Our work demonstrates the reliable nonlinear optical characteristics of WSe₂ and the feasibility for this two-dimensional material to be applied in the field of nonlinear optics.

Citation Download Citation

Bohua Chen, Xiaoyan Zhang, Chaoshi Guo, Kan Wu, Jianping Chen, and Jun Wang "Tungsten diselenide Q-switched erbium-doped fiber laser," Optical Engineering 55(8), 081306 (27 January 2016). https://doi.org/10.1117/1.OE.55.8.081306

Published: 27 January 2016

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